51745961824 has 12 divisors (see below), whose sum is σ = 101874862404. Its totient is φ = 25872980896.

The previous prime is 51745961797. The next prime is 51745961843. The reversal of 51745961824 is 42816954715.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808530622 + ... + 808530685.

It is an arithmetic number, because the mean of its divisors is an integer number (8489571867).

Almost surely, 2^51745961824 is an apocalyptic number.

It is an amenable number.

51745961824 is a deficient number, since it is larger than the sum of its proper divisors (50128900580).

51745961824 is a wasteful number, since it uses less digits than its factorization.

51745961824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617061317 (or 1617061309 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 52.

The spelling of 51745961824 in words is "fifty-one billion, seven hundred forty-five million, nine hundred sixty-one thousand, eight hundred twenty-four".